craftsmen training scheme (cts) nsqf level- 3cstaricalcutta.gov.in/images/cts welder (gmaw and...
TRANSCRIPT
GOVERNMENT OF INDIA MINISTRY OF SKILL DEVELOPMENT & ENTREPRENEURSHIP
DIRECTORATE GENERAL OF TRAINING
COMPETENCY BASED CURRICULUM
WELDER (GMAW & GTAW) (Duration: One Year)
CRAFTSMEN TRAINING SCHEME (CTS)
NSQF LEVEL- 3
SECTOR – CAPITAL GOODS AND MANUFACTURING
WELDER (GMAW & GTAW)
(Engineering Trade)
(Revised in 2019)
Version: 1.2
CRAFTSMEN TRAINING SCHEME (CTS)
NSQF LEVEL- 3
Developed By
Ministry of Skill Development and Entrepreneurship Directorate General of Training
CENTRAL STAFF TRAINING AND RESEARCH INSTITUTE EN-81, Sector-V, Salt Lake City,
Kolkata – 700 091 www.cstaricalcutta.gov.in
S No. Topics Page No.
1. Course Information 1
2. Training System 2
3. Job Role 6
4. General Information 8
5. Learning Outcome 11
6. Assessment Criteria 12
7. Trade Syllabus 16
Annexure I (List of Trade Tools & Equipment)
25
Annexure II (List of Trade experts)
28
CONTENTS
1
Welder (GMAW & GTAW)
During the one-year duration of “Welder (GMAW & GTAW)” trade, a candidate is
trained on Professional Skill, Professional Knowledge, Engineering Drawing, Workshop
Calculation & Science and Employability Skill related to job role. In addition to this, a
candidate is entrusted to undertake project work, extracurricular activities and on-the-job
training to build up confidence. The broad components covered under Professional Skill
subject are as below:-
Trainee learns about elementary first aid, firefighting, environment regulation and
housekeeping etc. Performs joining of MS sheet by Gas welding in different positions, Joins
MS plates by SMAW in different positions, performs straight, bevel & circular cutting on MS
plate by Oxy-acetylene cutting process. The trainee leans joining of different types of MS
pipe by Gas welding (OAW), SMAW. The Trainee sets up GMAW/ GTAW plant and weld M.S,
S.S and Aluminium sheets in all positions, performs Arc gauging on MS plate, joins MS/
Aluminium /SS sheets/plates by GMAW, GTAW & FCAW process in various positions using
different modes of metal transfer. Cuts ferrous and non-ferrous metal using plasma Arc
cutting. The trainee tests welded joint by visual inspection Dye penetrant & Magnetic
particle testing methods.
Professional Knowledge subject is simultaneously taught in the same fashion to
apply cognitive knowledge while executing task. In addition components like Physical
properties of engineering materials, different types of iron, properties and uses. In addition
to above components the core skills components viz., Workshop calculation & science,
Engineering drawing, employability skills are also covered. These core skills are essential
skills which are necessary to perform the job in any given situation.
1. COURSE INFORMATION
2
Welder (GMAW & GTAW)
2.1 GENERAL
The Directorate General of Training (DGT) under Ministry of Skill Development &
Entrepreneurship offers a range of vocational training courses catering to the need of
different sectors of economy/ Labour market. The vocational training programmes are
delivered under the aegis of Directorate General of Training (DGT). Craftsman Training
Scheme (CTS) with variants and Apprenticeship Training Scheme (ATS) are two pioneer
schemes of DGT for strengthening vocational training.
Welder (GMAW & GTAW) trade under CTS is one of the courses delivered
nationwide through network of ITIs. The course is of one year duration. It mainly consists of
Domain area and Core area. In the Domain area (Trade Theory & Practical) imparts
professional skills and knowledge, while Core area (Workshop Calculation science,
Engineering Drawing and Employability Skills) imparts requisite core skills, knowledge and
life skills. After passing out of the training program, the trainee is awarded National Trade
Certificate (NTC) by DGT which is recognized worldwide.
Broadly candidates need to demonstrate that they are able to:
Read & interpret technical parameters/document, plan and organize work
processes, identify necessary materials and tools;
Perform task with due consideration to safety rules, accident prevention regulations
and environmental protection stipulations;
Apply professional skill, knowledge, core skills & employability skills while
performing jobs.
Check the job/assembly as per drawing for functioning, identify and rectify errors in
job/assembly.
Document the technical parameters related to the task undertaken.
2.2 PROGRESSION PATHWAYS
Can join industry as Technician and will progress further as Senior Technician,
Supervisor and can rise up to the level of Manager.
Can become Entrepreneur in the related field.
Can take admission in diploma course in notified branches of Engineering by lateral
entry.
Can join Apprenticeship programme in different types of industries leading to
National Apprenticeship certificate (NAC).
2. TRAINING SYSTEM
3
Welder (GMAW & GTAW)
Can join Crafts Instructor Training Scheme (CITS) in the trade for becoming instructor
in ITIs.
Can join Advanced Diploma (Vocational) courses under DGT as applicable
2.3 COURSE STRUCTURE
Table below depicts the distribution of training hours across various course elements
during a period of one year:-
S No. Course Element Notional Training
Hours
1 Professional Skill (Trade Practical) 1000
2 Professional Knowledge (Trade Theory) 280
3 Workshop Calculation & Science 80
4 Engineering Drawing 80
5 Employability Skills 160
Total 1600
2.4 ASSESSMENT & CERTIFICATION
The trainee will be tested for his skill, knowledge and attitude during the period of
course through formative assessment and at the end of the training programme through
summative assessment as notified by the DGT from time to time.
a) The Continuous Assessment (Internal) during the period of training will be done by
Formative assessment method by testing for assessment criteria listed against learning
outcomes. The training institute have to maintain individual trainee portfolio as detailed in
assessment guideline. The marks of internal assessment will be as per the formative
assessment template provided on www.bharatskills.gov.in
b) The final assessment will be in the form of summative assessment. The All India Trade
Test for awarding NTC will be conducted by Controller of examinations, DGT as per the
guidelines. The pattern and marking structure is being notified by DGT from time to time.
The learning outcome and assessment criteria will be the basis for setting question papers
for final assessment. The examiner during final examination will also check the individual
trainee’s profile as detailed in assessment guideline before giving marks for practical
examination.
4
Welder (GMAW & GTAW)
2.4.1 PASS REGULATION
For the purposes of determining the overall result, weightage of 100% is applied for six
months and one year duration courses and 50% weightage is applied to each examination
for two years courses. The minimum pass percent for Trade Practical and Formative
assessment is 60% & for all other subjects is 33%. There will be no Grace marks.
2.4.2 ASSESSMENT GUIDELINE
Appropriate arrangements should be made to ensure that there will be no artificial
barriers to assessment. The nature of special needs should be taken into account while
undertaking the assessment. Due consideration should be given while assessing for
teamwork, avoidance/reduction of scrap/wastage and disposal of scrap/waste as per
procedure, behavioral attitude, sensitivity to the environment and regularity in training. The
sensitivity towards OSHE and self-learning attitude are to be considered while assessing
competency.
Assessment will be evidence based comprising the following:
Job carried out in labs/workshop
Record book/ daily diary
Answer sheet of assessment
Viva-voce
Progress chart
Attendance and punctuality
Assignment
Project work
Evidences and records of internal (Formative) assessments are to be preserved until
forthcoming examination for audit and verification by examining body. The following
marking pattern to be adopted while assessing:
Performance Level Evidence
(a) Weightage in the range of 60%-75% to be allotted during assessment
For performance in this grade, the candidate
should produce work which demonstrates
attainment of an acceptable standard of
craftsmanship with occasional guidance, and
due regard for safety procedures and
practices
Demonstration of good skill in the use
of hand tools, machine tools and
workshop equipment.
60-70% accuracy achieved while
undertaking different work with those
demanded by the component/job.
A fairly good level of neatness and
5
Welder (GMAW & GTAW)
consistency in the finish.
Occasional support in completing the
project/job.
(b) Weightage in the range of 75%-90% to be allotted during assessment
For this grade, a candidate should produce
work which demonstrates attainment of a
reasonable standard of craftsmanship, with
little guidance, and regard for safety
procedures and practices
Good skill levels in the use of hand
tools, machine tools and workshop
equipment.
70-80% accuracy achieved while
undertaking different work with those
demanded by the component/job.
A good level of neatness and
consistency in the finish.
Little support in completing the
project/job.
(c) Weightage in the range of more than 90% to be allotted during assessment
For performance in this grade, the candidate,
with minimal or no support in organization
and execution and with due regard for safety
procedures and practices, has produced
work which demonstrates attainment of a
high standard of craftsmanship.
High skill levels in the use of hand tools,
machine tools and workshop
equipment.
Above 80% accuracy achieved while
undertaking different work with those
demanded by the component/job.
A high level of neatness and consistency
in the finish.
Minimal or no support in completing
the project.
6
Welder (GMAW & GTAW)
Welder Gas; fuses metal parts together using welding rod and oxygen acetylene flame.
Examines parts to be welded, cleans portion to be joined, holds them together by some suitable
device and if necessary makes narrow groove to direct flow of molten metal to strengthen joint.
Selects correct type and size of welding rod, nozzle etc. and tests welding, torch. Wears dark
glasses and other protective devices while welding. Releases and regulates valves of oxygen and
acetylene cylinders to control their flow into torch. Ignites torch and regulates flame gradually.
Guides flame along joint and heats it to melting point, simultaneously melting welding rod and
spreading molten metal along joint shape, size etc. and rectifies defects if any.
Welder Electric; fuses metals using arc-welding power source and electrodes. Examines parts to
be welded, cleans them and sets joints together with clamps or any other suitable device. Starts
welding power source and regulates current according to material and thickness of welding.
Connect one lead to part to be welded, selects required type of electrode and clamps other lead
to electrode holder. May join parts first at various points for holding at specified angles, shape,
form and dimension by tack welding. Establish arc between electrode and joint and maintain it
throughout the length of the joint.
Gas Cutter; cuts metal to require shape and size by gas flame either manually or by machine.
Examines material to be cut and marks it according to instruction of specification. Makes
necessary connections and fits required size of nozzle in welding torch. Releases and regulates
flow of gas in nozzle, ignites and adjusts flame. Guides flame by hand or machine along cutting
line at required speed and cuts metal to required size.
Welder (GMAW & GTAW) while doing Gas Tungsten Arc welding (GTAW) also known as
Tungsten Inert Gas (TIG) welding reads fabrication drawing, examines parts to be welded,
cleans them and sets joints with clamps or any other suitable device. Selects suitable tungsten
electrode, grinds the edges and fit in to the GTA welding torch. Selects gas nozzle and fit in to
the GTA welding torch. Selects suitable filler rods and cleans them. Connects work piece with
earth cable, Connects the machine with Inert gas Cylinder, regulator and flow meter. Starts the
constant current GTA welding machine, sets suitable welding current & polarity and inert gas
flow. Establish arc through across a column of highly ionized inert gas between work piece and
Tungsten electrode. Melts the metal and deposit weld beads on metal surfaces by passing the
suitable filler rod in to the weld puddle. Joins Steel, Stainless steel & Aluminium sheets and
Aluminium & SS tubes .
Welder (GMAW& GTAW) while doing Gas Metal Arc welding also known as MIG/MAG
Welding, reads fabrication drawing, examines parts to be welded, cleans them and sets joints
with clamps or any other suitable device. Connects work piece with earth cable. Connects the
machine with suitable gas Cylinder, regulator and flow meter. Connects preheater when CO2 is
used as shielding gas. Selects suitable wire electrode, feed it to welding GMA Welding torch
through wire feeder. Selects contact tip gas nozzle and fit in to the GMA welding torch. Preheats
joints as required. Starts the Constant Voltage GMA welding machine, sets suitable welding
3. JOB ROLE
7
Welder (GMAW & GTAW)
voltage & wire feed speed and shielding gas flow, produces arc between work piece and
continuously fed wire electrode. Melts the metal and deposit weld beads on the surface of
metals or joins metal pieces such as Steel, Stainless steel and aluminium metals. Also will do
mixed shielding gas welding. May experience with tubular wire welding called Flux Cored Arc
Welding (FCAW)
Plan and organize assigned work and detect & resolve issues during execution in his own work
area within defined limit. Demonstrate possible solutions and agree tasks within the team.
Communicate with required clarity and understand technical English. Sensitive to environment,
self-learning and productivity.
Reference NCO-2015:
(i) 7212.0100 – Welder, Gas
(ii) 7212.0200 – Welder, Electric
(iii) 7212.0300 – Welder, Machine
(iv) 7212.0400 – Gas Cutter
8
Welder (GMAW & GTAW)
Name of the Trade Welder (GMAW & GTAW)
Trade Code DGT/1061
NCO - 2015 7212.0100, 7212.0200, 7212.0300, 7212.0400
NSQF Level Level-3
Duration of Craftsmen Training One year (1600 Hours)
Entry Qualification Passed 8th class examination
Minimum Age 14 years as on first day of academic session.
Eligibility for PwD LD, LC, DW, AA, DEAF, HH
Unit Strength (No. Of Student) 20 (There is no separate provision of supernumerary seats)
Space Norms 80 sq. m
Power Norms 16 KW
Instructors Qualification for
1. Welder (GMAW & GTAW)
Trade
B.Voc/Degree in Mechanical / Metallurgy / Production
Engineering/ Mechatronics from AICTE/UGC recognized
university/ college with one year experience in relevant field.
OR
03 years Diploma in Mechanical and allied from AICTE/
recognized board of technical education or relevant
Advanced Diploma (Vocational) from DGT with two years’
experience in relevant field.
NTC/ NAC passed in “Welder” Trade with 3 years' experience
in relevant field.
Essential Qualification:
Relevant National Craft Instructor Certificate (NCIC) in any of
the variants under DGT.
NOTE: Out of two Instructors required for the unit of 2(1+1),
one must have Degree/Diploma and other must have
NTC/NAC qualifications. However both of them must
possess NCIC in any of its variants.
2. Workshop Calculation
&Science
B.Voc/Degree in Engineering from AICTE/UGC recognized Engineering College/ university with one-year experience in the relevant field.
OR
4. GENERAL INFORMATION
9
Welder (GMAW & GTAW)
03 years Diploma in Engineering from AICTE / recognized board of technical education or relevant Advanced Diploma (Vocational) from DGT with two years’ experience in the relevant field.
OR NTC/ NAC in any one of the engineering trades with three years’ experience.
Essential Qualification:
National Craft Instructor Certificate (NCIC) in relevant trade.
OR
NCIC in RoDA or any of its variants under DGT.
3. Engineering Drawing B.Voc/Degree in Engineering from AICTE/UGC recognized Engineering College/ university with one-year experience in the relevant field.
OR
03 years Diploma in Engineering from AICTE / recognized
board of technical education or relevant Advanced Diploma
(Vocational) from DGT with two years’ experience in the
relevant field.
OR
NTC/ NAC in any one of the Engineering trades with three
years experience.
Essential Qualification: National Craft Instructor Certificate (NCIC) in relevant trade
OR NCIC in RoDA / D’man (Mech /civil) or any of its variants
under DGT.
4. Employability Skill MBA/ BBA / Any Graduate/ Diploma in any discipline with
Two years’ experience with short term ToT Course in
Employability Skills from DGT institutes.
(Must have studied English/ Communication Skills and Basic Computer at 12th / Diploma level and above)
OR
Existing Social Studies Instructors in ITIs with short term ToT
Course in Employability Skills from DGT institutes.
5. Minimum Age for Instructor
21 Years
List of Tools and Equipment As per Annexure – I
Distribution of training on Hourly basis: (Indicative only)
10
Welder (GMAW & GTAW)
Total Hrs
/week
Trade
Practical
Trade
Theory
Workshop
Cal. & Sc.
Engg.
Drawing
Employability
Skills
40 Hours 25 Hours 7 Hours 2 Hours 2 Hours 4 Hours
11
Welder (GMAW & GTAW)
Learning outcomes are a reflection of total competencies of a trainee and assessment will be carried out as per the assessment criteria.
5.1 LEARNING OUTCOMES (TRADE SPECIFIC)
1. Perform joining of MS sheet by Gas welding in different positions following safety
precautions.
2. Join MS plates by SMAW in different positions.
3. Perform straight, bevel & circular cutting on MS plate by Oxy-acetylene cutting
process.
4. Perform different types of MS pipe joints by Gas welding (OAW).
5. Weld different types of MS pipe joints by SMAW.
6. Setup GMAW / GTAW plant and weld M.S, S.S and Aluminium sheets in all positions.
7. Perform Arc gauging on MS plate.
8. Join MS/ Aluminium /SS sheets/plates by GMAW in various positions using different
modes of metal transfer.
9. Use of mixed shielding gas for GMAW welding.
10. Welding of metals by FCAW process.
11. Join Aluminium & Stainless Steel sheets by GTAW in different position.
12. Weld pipe joints by GTAW.
13. Cut ferrous and nonferrous metal using plasma Arc cutting.
14. Test welded joint by visual inspection Dye penetrant & Magnetic particle testing
methods.
5. LEARNING OUTCOME
12
Welder (GMAW & GTAW)
LEARNING OUTCOMES ASSESSMENT CRITERIA
1. Perform joining of MS
sheet by Gas welding in
different positions
following safety
precautions.
Plan and select the nozzle size, working pressure type of flame,
filler rod as per requirement.
Prepare, set and tack the pieces as per drawing.
Setting up the tacked joint in specific position.
Deposit the weld following proper welding technique and safety
aspect.
Carry out visual inspection to ascertain quality weld joint.
2. Join MS plates by SMAW
in different positions.
Plan and select the type & size of electrode, welding current, type
of edge preparation etc. as per requirement.
Prepare, set and tack the pieces as per drawing.
Set up the tacked pieces in specific position.
Deposit the weld maintaining appropriate arc length, electrode
angle, welding speed, weaving technique and safety aspects.
Clean the welded joint thoroughly.
Carry out visual inspection for appropriate weld joint.
Inspect the weld using DPT/MPT.
3. Perform straight, bevel &
circular cutting on MS
plate by Oxy-acetylene
cutting process.
Plan and mark on MS plate surface for straight/bevel/circular
cutting.
Select the nozzle size and working pressure of gases as per
requirement.
Set the marked plate properly on cutting table.
Perform the straight and bevel cutting operation maintaining
proper techniques and all safety aspects.
Perform the circular cutting operation by using profile cutting
machine maintaining proper techniques and all safety aspects
Clean the cutting burrs and inspect the cut surface for soundness
of cutting.
4. Perform different type of
MS pipe joints by Gas
welding (OAW).
Plan and prepare the development for a specific type of pipe joint.
Mark and cut the MS pipe as per development.
Select the size of filler rod, size of nozzle, working pressure etc.
Set and tack the pieces as per drawing.
Deposit the weld bead maintaining proper technique and safety
aspects.
Inspect the welded joint visually for poor penetration, uniformity
6. ASSESSMENT CRITERIA
13
Welder (GMAW & GTAW)
of bead and surface defects.
5. Weld different types of
MS pipe joints by SMAW.
Plan and prepare the development for a specific type of pipe joint.
Mark and cut the MS pipe as per development.
Select the electrode size and welding current for welding.
Set and tack the pieces as per drawing.
Deposit the weld bead maintaining proper technique and safety
aspects.
Insect the welded joint visually for root penetration, uniformity of
bead and surface defects.
6. Setup GMAW/ GTAW
plant and weld M.S, S.S
and Aluminium sheets in
all positions.
Select the welding machine, as per requirement.
Connect the torch/welding gun to the machine.
Connect the earth cable to the welding table.
Set the welding current & Voltage.
Set the wire feed rate.
Set the gas flow rate.
7. Perform Arc gauging on
MS plate.
Plan and select the size of electrode for Arc gouging.
Select the polarity and current as per requirement.
Perform gouging adapting proper gouging technique.
Clean and check to ascertain the required stock removed.
8. Join MS /Aluminium/SS
sheets/plates by GMAW
in various positions using
different modes of metal
transfer.
Select size of electrode wire, welding voltage, gas flow rate, wire
feed rate as per requirement.
Prepare, set and tack the pieces as per drawing.
Set up the tacked joint in specific position.
Deposit the weld adapting proper welding technique and safety
aspects.
Carry out visual inspection to ensure quality of welded joint.
Inspect the weld using Dye-penetration Test (DPT)/Magnetic
particle Test (MPT).
9. Using of mixed shielding
gas for GMAW welding.
Select size of electrode wire, welding voltage, gas flow rate, wire
feed rate as per requirement.
Prepare, set and tack the pieces as per drawing.
Set up the tacked joint in specific position.
Deposit the weld adapting proper welding technique and safety
aspects.
Carry out visual inspection to ensure quality of welded joint.
Inspect the weld using Dye-penetration (DPT)/Magnetic particle
14
Welder (GMAW & GTAW)
Test (MPT).
10. Welding of metals by
FCAW process.
Select size of electrode wire, welding voltage, gas flow rate, wire
feed rate as per requirement.
Prepare, set and tack the pieces as per drawing.
Set up the tacked joint in specific position.
Deposit the weld adapting technique and safety aspects.
Carry out visual inspection to ensure quality of welded joint.
Inspect the weld using Dye-penetration (DPT)/Magnetic particle
Test (MPT).
11. Join Aluminium &
Stainless Steel sheets by
GTAW in different
position.
Select power source as per material, size and type of Tungsten
electrode, welding current, gas nozzle size, gas flow rate and filler
rod size as per requirement.
Prepare, set and tack the pieces as per drawing.
Set up the tacked joint in specific position.
Deposit the weld by adapting proper welding technique and safety
aspects.
Carry out visual inspection to ensure quality of welded joint.
12. Weld pipe joints by
GTAW.
Plan and prepare development or edge preparation for specific
type of pipe joint.
Mark and cut the MS pipe as per development.
Select the type of welding current, size and type of tungsten
electrode, size of nozzle, gas flow rate and welding current as per
requirement.
Set and tack the piece as per drawing.
Deposit the weld bead maintaining proper technique and safety
aspects.
Inspect the welded joint visually for root penetration, bead
uniformity and surface defects.
13. Cut ferrous and
nonferrous metal using
plasma Arc cutting.
Plan and mark on Ferrous/Non ferrous metal plates surface for
plasma cutting.
Select the torch/nozzle size, current and working pressure of gas
as per requirement.
Set the marked plate properly on cutting table.
Perform the cutting operation by adapting proper techniques and
safety aspects.
Clean and inspect the cut surface for quality of cutting.
15
Welder (GMAW & GTAW)
14. Test welded joint by visual
inspection Dye penetrant
& Magnetic particle
testing methods.
Plan and select the job and clean the surface thoroughly.
Select the appropriate testing methods.
Perform testing of welded joints adapting standard operating
procedure.
Accept/reject the job based on test result.
16
Welder (GMAW & GTAW)
SYLLABUS - WELDER (GMAW & GTAW)
DURATION: ONE YEAR
Duration Reference
Learning Outcome
Professional Skills
(Trade Practical)
With Indicative Hours
Professional Knowledge
(Trade Theory)
Professional
Skill 50 Hrs;
Professional
Knowledge
14 Hrs
Perform joining of
MS sheet by Gas
welding in different
positions following
safety precautions.
Induction training:
1. Familiarization with the
Institute. (04 hrs)
2. Importance of trade
Training. (04 hrs)
3. Machinery used in the
trade. (04 hrs)
4. Introduction to safety
equipment and their use
etc. (03 hrs)
5. Hack sawing, filing square to
dimensions. (06 hrs)
6. Marking out on MS plate
and punching. (04 hrs)
General discipline in the
Institute
Elementary First Aid.
Importance of Welding in
Industry
Safety precautions in
Shielded Metal Arc
Welding, and Oxy-
Acetylene Welding and
Cutting. (07 Hrs)
7. Setting up of Arc welding
machine & accessories and
striking an arc. (10 hrs)
8. Setting of oxy-acetylene
welding equipment, Lighting
and setting of flame. (15
hrs)
Introduction and definition
of welding.
Arc and Gas Welding
Equipments, tools and
accessories.
Various Welding Processes
and its applications.
Arc and Gas Welding terms
and definitions. (07 Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
07 Hrs
Join MS plates by
SMAW in different
positions.
9. Fusion run without and with
filler rod on M.S. sheet 2
mm thick in flat position. (06
hrs)
10. Edge joint on MS sheet 2
mm thick in flat position
without filler rod. (07 hrs)
11. Marking and straight line
Different process of metal
joining methods: Bolting,
riveting, soldering, brazing,
seaming etc.
Types of welding joints and
its applications. Edge
preparation and fit up for
different thickness.
7. TRADE SYLLABUS
17
Welder (GMAW & GTAW)
cutting of MS plate. 10 mm
thick by gas. (12 hrs) Surface Cleaning(07 Hrs)
Professional
Skill 200 Hrs;
Professional
Knowledge
56 Hrs
Perform straight,
bevel & circular
cutting on MS plate
by Oxy-acetylene
cutting process.
12. Straight line beads on M.S.
plate 10 mm thick in flat
position. (10 hrs)
13. Weaved bead on M. S plate
10mm thick in flat position.
(15 hrs)
Basic electricity applicable
to arc welding and related
electrical terms &
definitions.
Heat and temperature and
its terms related to
welding
Principle of arc welding.
And characteristics of arc.
(07 Hrs)
14. Square butt joint on M.S.
sheet 2 mm thick in flat
Position. (10 hrs)
15. Fillet "T" joint on M. S. Plate
10 mm thick in flat position.
(15 hrs)
Common gases used for
welding & cutting, flame
temperatures and uses.
Chemistry of oxy-acetylene
flame.
Types of oxy-acetylene
flames and uses.
Oxy-Acetylene Cutting
Equipment principle,
parameters and
application. (07 Hrs)
16. Beveling of MS plates 10
mm thick. By gas cutting. (10
hrs)
17. Open corner joint on MS
sheet 2 mm thick in flat
Position. (05 hrs)
18. Fillet lap joint on M.S. plate
10 mm thick in flat position.
(10 hrs)
Arc welding power
sources: Transformer,
Motor Generator set,
Rectifier and Inverter type
welding machines and its
care & maintenance.
Advantages and
disadvantages of A.C. and
D.C. welding machines. (07
Hrs)
19. Circular gas cutting on MS
plate 10 mm thick by profile
cutting machine. (05 hrs)
20. Fillet "T" joint on M S she et
2 mm thick in flat position.
(05 hrs)
21. Open Corner joint on MS
Welding positions as per
EN & ASME: flat,
horizontal, vertical and
over head position.
Weld slope and rotation.
Welding symbols as per BIS
18
Welder (GMAW & GTAW)
plate 10 mm thick in flat
position. (04 hrs)
22. Fillet Lap joint on MS sheet
2 mm thick in flat position.
(06 hrs)
23. Single "V" Butt joint on M S
plate 12 mm thick in flat
position (1G). (05 hrs)
& AWS.
Arc length - types - effects
of arc length.
Polarity: Types and
applications. (07 Hrs)
24. Square Butt joint on M.S.
sheet. 2 mm thick in
Horizontal position. (05 hrs)
25. Straight line beads and multi
layer practice on M.S. Plate
10 mm thick in Horizontal
position. (10 hrs)
26. Fillet "T" 10 mm thick in
Horizontal position. (10 hrs)
Calcium carbide properties
and uses.
Acetylene gas properties
and generating methods.
Acetylene gas Purifier,
Hydraulic back pressure
valve and Flash back
arrestor (07 Hrs)
27. Fillet Lap joint on M.S. sheet
2 mm thick in horizontal
position. (08 hrs)
28. Fillet Lap joint on M.S. plate
10 mm thick in horizontal
position. (17 hrs)
Oxygen gas and its
properties
Production of oxygen by
Air liquefaction.
Charging process of
oxygen and acetylene
gases
Oxygen and Dissolved
Acetylene gas cylinders
and Color coding for
different gas cylinders.
Gas regulators, types and
uses. (07 Hrs)
29. Fusion run with filler rod in
vertical position on 2mm
thick M.S. sheet. (05 hrs)
30. Square Butt joint on M.S.
sheet. 2 mm thick in vertical
position. (05 hrs)
31. Single Vee Butt joint on M.S.
plate 12 mm thick in
horizontal position (2G). (15
hrs)
Oxy acetylene gas welding
Systems (Low pressure and
High pressure). Difference
between gas welding blow
pipe(LP & HP) and gas
cutting blow pipe
Gas welding techniques.
Rightward and Leftward
techniques. (07 Hrs)
19
Welder (GMAW & GTAW)
32. Weaved bead on M.S Plate
10mm in vertical position.
(10 hrs)
33. Fillet "T" joint on M.S sheet
2 mm thick in vertical
position. (05 hrs)
34. Fillet "T" 10 mm thick in
vertical position. (10 hrs)
Arc blow - causes and
methods of controlling.
Distortion in arc & gas
welding and methods
employed to minimize
distortion
Arc Welding defects,
causes and Remedies. (07
Hrs)
Professional
Skill 75 Hrs;
Professional
Knowledge
21 Hrs
Perform different
types of MS pipe
joints by Gas
welding (OAW).
35. Structural pipe welding butt
joint on MS pipe 0 50 and
3mm WT in 1G position.
(15 hrs)
36. Fillet Lap joint on M.S. Plate
10 mm in vertical position.
(10 hrs)
Specification of pipes,
various types of pipe
joints, pipe welding
positions, and procedure.
Difference between pipe
welding and plate welding.
(07 Hrs)
37. Open Corner joint on MS
plate 10 mm thick in vertical
position. (10 hrs)
38. Pipe welding - Elbow joint
on MS pipe 0-50 and 3mm
WT. (15 hrs)
Pipe development for
Elbow joint, "T" joint, Y
joint and branch joint
Manifold system (07 Hrs)
39. Pipe welding "T" joint on MS
pipe 0 - 50 and 3mm WT.
(10 hrs)
40. Single "V" Butt joint on M S
plate 12 mm thick in vertical
position (3G). (15 hrs)
Gas welding filler rods,
specifications and sizes.
Gas welding fluxes - types
and functions.
Gas Brazing & Soldering :
principles, types fluxes &
uses
Gas welding defects,
causes and remedies. (07
Hrs)
Professional
Skill 75 Hrs;
Professional
Knowledge
21 Hrs
Weld different
types of MS pipe
joints by SMAW.
-
41. Pipe welding 45 ° angle joint
on MS pipe 0 - 50 and 3mm
WT. (15 hrs)
42. Straight line beads on M.S.
plate 10mm thick in over
head position. (10 hrs)
Electrode : types, functions
of flux, coating factor, sizes
of electrode Coding of
electrode as per BIS, AWS,
Effects of moisture pick up.
Storage and baking of
electrodes.
20
Welder (GMAW & GTAW)
Special purpose electrodes
and their applications. (07
Hrs)
43. Pipe Flange joint on M.S
plate with MS pipe 0 - 50
mm X 3mm WT. (07 hrs)
44. Fillet "T" 10 mm thick in
over head position. (04 hrs)
45. Pipe welding butt joint on
MS pipe 0 - 50 and 5 mm
WT. in 1G position. (08 hrs)
46. Fillet Lap joint on M.S. plate
10 mm thick in over head
position. (06 hrs)
Weldability of metals,
importance of pre heating,
post heating and
maintenance of inter pass
temperature.
Classification of steel.
Welding of low, medium
and high carbon steel and
alloy steels. (07 Hrs)
47. Single "V" Butt joint on MS
plate 10mm thick in over
head position (4G). (15 hrs)
48. Pipe butt joint on M. S. pipe
0 - 50mm WT 6mm (1G
Rolled). (10 hrs)
Effects of alloying
elements on steel
Stainless steel: types- weld
decay and weldability. (07
Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
07 Hrs
Setup GMAW /
GTAW plant and
weld M.S, S.S and
Aluminium sheets
in all positions.
49. Square Butt joint on S.S.
sheet. 2 mm thick in flat
position. (08 hrs)
50. Square Butt joint on S.S.
Sheet 2 mm thick in flat
position. (08 hrs)
51. Square Butt joint on Brass
sheet 2 mm thick in flat
position. (09 hrs)
Brass - types - properties
and welding methods.
Copper - types - properties
and welding methods.(07
Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
07 Hrs
Perform Arc
gauging on MS
plate.
52. Square Butt & Lap joint on
M.S. sheet 2 mm thick by
brazing. (08 hrs)
53. Single "V" butt joint C.I.
plate 6mm thick in flat
position. (07 hrs)
54. Arc gouging on MS plate 10
mm thick. (10 hrs)
Aluminium and its alloys,
properties and weldability,
Welding methods
Arc cutting & gouging,(07
Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
Join MS/
Aluminium /SS
sheets/plates by
GMAW in various
55. Square Butt joint on
Aluminium sheet. 3 mm
thick in flat position. (10 hrs)
56. Bronze welding of cast iron
Cast iron and its properties
types.
Welding methods of cast
iron.(07 Hrs)
21
Welder (GMAW & GTAW)
07 Hrs positions using
different modes of
metal transfer.
(Single "V" butt joint) 6mm
thick plate. (15 hrs)
Professional
Skill 125 Hrs;
Professional
Knowledge
35 Hrs
Using of mixed
shielding gas for
GMAW welding.
57. Familiarization with the
machinery used in the trade.
(06 hrs)
58. Introduction to safety
equipment and their use
etc. (04 hrs)
59. Setting up of GMAW/ GTAW
welding machine &
accessories. (15 hrs)
Outline of the subjects to
be covered.
Safety precautions
pertaining to GTAW &
GMAW. (07 Hrs)
60. Straight line beads on MS
plate by GMAW welding. (10
hrs)
61. Lap joint on MS plate by
GMAW welding in down
hand position. (15 hrs)
Introduction to GMAW –
equipment – accessories.
Various names of the
process.(MIG-MAG/ CO2
WELDING, FCAW).
Advantages & Limitations.
(07 Hrs)
62. Open corner joint on MS
plate in down hand position.
(10 hrs)
63. "T" joint on MS sheet in flat
position. (15 hrs)
Power source &
accessories Wire Feed unit.
Types of shielding gases &
advantages. (07 Hrs)
64. "T" joint on MS sheet in
horizontal position. (08 hrs)
65. "T" joint on MS sheet in
vertical position. (08 hrs)
66. "T" joint on MS sheet in
overhead position. (09 hrs)
Welding Gun & its parts.
Modes of metal transfer -
Dip, Globular, spray
&pulsed transfer and its
significance. (07 Hrs)
67. Single "V' butt joint by C02
welding in down hand
position. (10 hrs)
68. Single "V' butt joint by Argo
shield welding in flat
position (Gas: Argon and
CO2 mixture). (15 hrs)
Flux cored arc welding.
Welding wire types and
specification. (07 Hrs)
Professional
Skill 50 Hrs;
Professional
Welding of metals
by FCAW process.
69. Straight line beads on MS
plate by Flux cored Arc
welding (FCAW). (15 hrs)
70. Single "V' joint by Flux cored
Trouble shooting in MIG
welding.
Data and Tables related to
CO2 welding. (07 Hrs)
22
Welder (GMAW & GTAW)
Knowledge
14 Hrs
Arc welding. (10 hrs)
71. Straight line beads on S.S
plate by GMAW welding. (12
hrs)
72. Lap & Square butt and T
joint on S.S. sheet. (13 hrs)
Reading of Welding
procedure specifications (
WPS ).
Reading of Procedure
qualification Record (PQR)
(07 Hrs)
Professional
Skill 200 Hrs;
Professional
Knowledge
56 Hrs
Join Aluminium &
Stainless Steel
sheets by GTAW in
different position.
73. Straight line beads on
Aluminium plate by GMAW
welding. (08 hrs)
74. Single "V' and fillet joint on
Aluminium plate. (07 hrs)
75. Setting up GTAW welding
plant and establishing the
arc. (04 hrs)
76. Beading practice on MS
sheet by GTAW. (02 hrs)
77. Square butt joint on MS in
down hand position. (04 hrs)
Types of weld defects,
causes and remedy in
GMAW process.
Introduction to GTAW
welding
Various names of the
process.(TIG, Argon arc
welding).
Equipments & accessories.
Advantages & Limitations.
(07 Hrs)
78. Open corner joint on MS
sheet in down hand
position. (10 hrs)
79. Lap joint on MS sheet in
down hand position. (15 hrs)
Power source - Types,
polarity and application
Accessories - HF unit and
DC suppressor. (07 Hrs)
80. Tee joint on MS sheet in
down hand position. (15 hrs)
81. Lap joint on MS sheet in
Horizontal position. (10 hrs)
Tungsten electrode, Types,
sizes, and uses. coding as
per BIS & AWS.
Type of shielding gases-
Types & properties (07
Hrs)
82. Square butt joint on MS
sheet in Horizontal position.
(12 hrs)
83. Square butt joint on MS
sheet in Vertical position.
(13 hrs)
GTAW Welding
consumables
Types & Specifications as
per BIS & AWS (07 Hrs)
84. Lap & Tee joint on MS sheet
in Vertical position. (15 hrs)
85. Square butt joint on MS
sheet in overhead position.
(10 hrs)
Tables & data relating to
TIG welding.
Different type of weld
joints- plates & pipes. (07
23
Welder (GMAW & GTAW)
Hrs)
86. Beading practice on SS
sheet. (04 hrs)
87. Square butt joint on SS
sheet by TIG in flat position.
(14 hrs)
88. Open corner joint on SS
sheet by TIG in flat position.
(07 hrs)
Edge preparation of plates
& pipes.
Fitting of joint plates for
TIG Welding. (07 Hrs)
89. Square butt joint on SS
sheet in Vertical position.
(15 hrs)
90. Lap joint on SS sheet in
vertical position. (10 hrs)
Square wave concept and
Wave balancing.
Advantages of root pass
welding of pipes by TIG
welding(07 Hrs)
91. Tee joint on SS sheet in
Vertical position. (09 hrs)
92. Square butt joint welding of
SS sheet with back purging
Technique. (16 hrs)
Types of weld defects,
causes and remedy in
GTAW process. (07 Hrs)
Professional
Skill 75 Hrs;
Professional
Knowledge
21 Hrs
Weld pipe joints by
GTAW.
93. Beading practice on
Aluminium sheet by GTAW.
(04 hrs)
94. Square butt joint on
Aluminium sheet by GTAW
in flat position. (12 hrs)
95. Open corner joint on
Aluminium sheet in flat
position. (09 hrs)
Purging: Importance,
Method of giving. (07 Hrs)
96. Square butt joint on
Aluminium sheet in Vertical
position. (15 hrs)
97. Single V butt joint on
Aluminum sheet by TIG.
(10 hrs)
Basic welding metallurgy.
Weldability of metals. (07
Hrs)
24
Welder (GMAW & GTAW)
98. Square butt joint on Tube
welding practice on M.S. &
S.S tube metals in rolled
position. (13 hrs)
99. Square butt joint on Tube
welding practice on
Aluminium in rolled
position. (12 hrs)
Preheating and Post
heating
Distortion and methods of
control.
Submerged Arc welding -
Principles, application-
Types of fluxes, welding
head, power source and
Parameter setting. (07 Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
07 Hrs
Cut ferrous and
nonferrous metal
using plasma Arc
cutting.
100. Plasma cutting of SS sheets
& Aluminum plates. (05
hrs)
101. Dimensional inspection of
weldments. (10 hrs)
102. Weld test specimen
preparation. (6 hrs)
103. Visual inspection of
weldments. (04 hrs)
Micro plasma welding
principles, Equipment,
power source, parameter
settings, Advantages &
limitations
Plasma cutting principles
and advantages. (07 Hrs)
Professional
Skill 25 Hrs;
Professional
Knowledge
07 Hrs
Test welded joint
by visual inspection
Dye penetrant &
Magnetic particle
testing methods.
104. Dye penetrant. (09 hrs)
105. Magnetic particle testing.
(16 hrs)
Inspection & testing of
weldments
Visual inspection methods
Inspection kits - universal
gauge, Fillet gauge, etc.
Non-destructive Testing
methods, PT, MPT, UT &
RT
Destructive testing - Bend
test & tensile test. (07 Hrs)
25
Welder (GMAW & GTAW)
SYLLABUS FOR CORE SKILLS
1. Workshop Calculation & Science (Common for one year courses) (80Hrs )
2. Engineering Drawing (80Hrs )
3. Employability Skills (Common for all CTS trades) (160Hrs )
Learning outcomes, assessment criteria, syllabus and Tool List of Core Skills subjects which is
common for a group of trades, provided separately in www.bharatskills.gov.in
26
Welder (GMAW & GTAW)
LIST OF TOOLS AND EQUIPMENT
WELDER (GMAW & GTAW) (For Batch of 20 Candidates)
S No. Name of the Tool &Equipment Specification Quantity
A. TRAINEES TOOLS KIT
1. Welding helmet fibre 21(20+1) Nos.
2. Welding hand shield fibre 21(20+1) Nos.
3. Chipping Hammer with metal handle 250 grams 21(20+1) Nos.
4. Chisel cold flat 19 mmx 150 mm 21(20+1) Nos.
5. Centre punch 9mm x 127 mm 21(20+1) Nos.
6. Dividers 200 mm 21(20+1) Nos.
7. Stainless steel Rule 300 mm 21(20+1) Nos.
8. Scriber 150 mm 21(20+1) Nos.
9. Tongs flat 350 mm 21(20+1) Nos.
10. Hacksaw frame fixed 300mm 21(20+1) Nos.
11. File half round bastard 300 mm 21(20+1) Nos.
12. File flat 350 mm bastard 21(20+1) Nos.
13. Hammer ball peen 1 Kg with handle 21(20+1) Nos.
14. Try square 6’’ 21(20+1) Nos.
15. Tip Cleaner 21(20+1) Nos.
B. GENERAL MACHINERY SHOP OUTFIT
16. Spindle key 4 Nos.
17. Screw Driver 300mm blade and 250 mm blade
1 each
18. Number punch 6 mm 2 set
19. Letter punch 6 mm 2 set
20. Magnifying glass 100 mm. dia. 2 Nos.
21. Universal Weld measuring gauge 2 Nos.
22. Earth clamp 600A 6 Nos.
23. Spanner D.E. 6 mm to 32mm 2 sets
24. C-Clamps 10 cm and 15 cm 2 each
25. Hammer sledge double faced 4 kg 1 No.
26. S.S tape 5 meters flexible in case 1 No.
27. Electrode holder 600 amps 6 Nos.
28. H.P. Welding torch with 5 nozzles 2 sets
29. Oxygen Gas Pressure regulator double stage
2 Nos.
30. Acetylene Gas Pressure regulator double stage
2 Nos.
31. CO2 Gas pressure regulator, with flow 2 set
ANNEXURE-I
27
Welder (GMAW & GTAW)
meter
32. Argon Gas pressure regulator with flow meter
2 set
33. Metal rack 182 cm x 152 cm x 45 cm 1 No.
34. First Aid box 1 No.
35. Steel lockers with 8 Pigeon holes 2 Nos.
36. Steel almirah / cupboard 2 Nos.
37. Black board and easel with stand 1 No.
38. Flash back arrester (torch mounted) 4 pairs
39. Flash back arrester (cylinder mounted) 4 pairs
C. GENERAL INSTALLATION
40. Welding Transformer with all accessories 400A , OCV 60 - 100 V, 60% duty cycle
2 sets
41. Welding Transformer or Inverter based welding machine with all accessories
300A , OCV 60 - 100 V, 60% duty cycle
2 sets
42. D.C Arc welding rectifiers set with all accessories
400 A. OCV 60 -100 V, 60% duty cycle
1 sets
43. GMAW welding machine 400A capacity with air cooled torch, Regulator, Gas preheater, Gas hose and Standard accessories
2 set
44. AC/DC GTAW welding machine with water cooled torch, Argon regulator, Gas hose, water circulating system and standard accessories.
torch 300 A 2 set
45. Air Plasma cutting equipment with all accessories, capacity to cut 25 mm clear cut
1 set
46. Air compressor suitable for air plasma cutting system
1 No.
47. Auto Darkening Welding Helmet 2
48. Portable abrasive cut-off machine 1 No.
49. Pug cutting machine Capable of cutting Straight & Circular with all accessories
1 set
50. Pedestal grinder fitted with coarse and medium grain size grinding wheels
dia. 300 mm 1 No.
51. Bench grinder fitted with fine grain size silicon carbide green grinding wheel
dia. 150 mm 1 No.
52. AG 4 Grinder 2 Nos.
53. Suitable gas welding table with fire bricks 2 Nos.
54. Suitable Arc welding table with positioner 9 Nos.
55. Trolley for cylinder (H.P. Unit) 2 Nos.
56. Hand shearing machine capacity to cut 6 mm sheets and flats
1 No.
57. Power saw machine 18'' 1 No.
58. Portable drilling machine Cap. 6 mm 1 No.
59. Oven, electrode drying 0 to 250°C, 10 kg capacity 1 No.
28
Welder (GMAW & GTAW)
60. Work bench 340x120x75 cm with 4 bench vices of 150 mm jaw opening
5 sets
61. Oxy Acetylene Gas cutting blow pipe 2 sets
62. Oxygen, Acetylene Cylinders #2 each
63. CO2 cylinder #2 Nos.
64. Argon gas cylinder #2 Nos.
65. Anvil 12 sq. inches working area with stand
1 No.
66. Swage block 1 No.
67. Die penetrant testing kit 1 set
68. Magnetic particle testing Kit 1 set
69. Fire extinguishers (foam type and CO2 type)
1 No.
70. Fire buckets with stand 4 nos.
71. Suitable gas cutting table 1 No.
72. Welding Simulators for SMAW/GTAW/GMAW
1 each (Optional)
D. LIST OF CONSUMABLE
73. Leather Hand Gloves 14 " 21 Pairs
74. Cotton hand gloves 8 " 21 pairs
75. Leather hand sleeves 16 " 21 pairs
76. Leg guards leather 21 pairs
77. Leather Apron 21 Nos.
78. Gas welding Goggles with filter glass 3A or 4A DIN 21 Nos.
79. Wire brush (M.S & SS) 5 rows and 3 rows 21 Nos. each
80. Spark lighter 6 Nos.
81. Safety boots for welders 21 pairs
82. Safety goggles with plain glass 21 Nos.
83. AG 4 Grinding wheels 10 nos.
84. Welding rubber hose, oxygen and acetylene 8 mm dia. As per BIS
30 mtr each
85. Rubber hose clips 20 nos.
86. Arc welding filter glasses DIN 9A 11 A & 13 A
108 mm x 82 mm x 3 mm 20 each
87. Plain glasses for helmets 108 mm x 82 mm x 3 mm 40 nos
Note: 1. Internet facility is desired to be provided in the class room.
2. No additional items are required to be provided for unit or batch working in the Second shift
except the items under trainee's tool kit and steel lockers.
29
Welder (GMAW & GTAW)
The DGT sincerely acknowledges contributions of the Industries, State Directorates, Trade
Experts, Domain Experts, trainers of ITIs, NSTIs, faculties from universities and all others who
contributed in revising the curriculum.
Special acknowledgement is extended by DGT to the following expert members who had
contributed immensely in this curriculum.
List of Expert members participated in preparation of course curriculum of Welder (GMAW & GTAW) trade
S No. Name & Designation
Shri/Mr./Ms. Organization Remarks
MEMBERS OF SECTOR MENTOR COUNCIL
1. Dr.G. Buvanashekaran, AGM WRI, Trichy - Chairman Chairman
2. Dr.K. Ashokkumar, AGM BHEL, Trichy Member
3. Prof. Jyothi Mukhopadhya IIT, Ahmedabad Member
4. B. Pattabhiraman, MD GB Engineering, Tricgy Member
5. Dr. Rajeev kumar IIT, Mandi Member
6. Dr. Vishalchauhan IIT, Mandi Member
7. D.K. Singh IIT, Kanpur Member
8. Navneet Arora IIT, Roorkee Member
9. R. K. Sharma, Head SDC, JBM Group, Faridabad Member
10. Puneet Sinha, Deputy Director MSME, New Delhi Member
MENTOR
11. Deepankar Mallick, DDG (C&P) DGT Hq, Mentor
MEMBERS OF CORE GROUP
12. M Thamizharasan, JDT CSTARI, Kolkata Member
13. M Kumaravel, DDT FTI , Bangalore Team Leader
14. Sushil Kumar, DDT DGT HQ, Member
15. S.P.Khatokar, T.O. ATI, Mumbai Member
16. V.L. Ponmozhi, TO CTI, Chennai Member
17. D. Pani, TO ATI, Howrah Member
18. Amar Singh, TO ATI, Ludhiyana Member
19. Gopalakrishnan, TO NIMI, Chennai Member
20. Manjunatha B.S, JTO GITI, K.G.F. Karnataka Member
21. Venugopal PC ITI Chalakudi, Kerala Member
ANNEXURE-II
30
Welder (GMAW & GTAW)
ABBREVIATIONS:
CTS Craftsmen Training Scheme
ATS Apprenticeship Training Scheme
CITS Craft Instructor Training Scheme
DGT Directorate General of Training
MSDE Ministry of Skill Development and Entrepreneurship
NTC National Trade Certificate
NAC National Apprenticeship Certificate
NCIC National Craft Instructor Certificate
LD Locomotor Disability
CP Cerebral Palsy
MD Multiple Disabilities
LV Low Vision
HH Hard of Hearing
ID Intellectual Disabilities
LC Leprosy Cured
SLD Specific Learning Disabilities
DW Dwarfism
MI Mental Illness
AA Acid Attack
PwD Person with disabilities